Improvement in lamps



J. H. IRWIN.

Lamp Burner.

Patented Uct. 29. 1861*.

Wz'nesseis:

NA PErERs. Plwwuuwgnpnw. wasningtar D. c.

UNITED STATES PATENT OEEICE.

JOHN II. IRVIN, OF BEARDSTOVN, ILLINOIS.

` IMPROVEMENT |N LAMPS.

Specification forming part of Letters Patent No. 33,588, dated October 29, 186i.

To a/ZZ whom zit may concern:

Be it known that I, JOHN I-I. IRWIN, of Beardstown, in the county of Cass and State of Illinois, have invented a new and Improved Lamp; and I do hereby declare that the followingisafull, clear, and exact description of the saine, reference being had to the annexed drawings, making a part of this specification, in which- Figure l is a vertical central section of a lamp constructed according to my invention; a: Fig.2, shows the plane of section; Fig. 2, a plan or top view of the same; Fig. 3, a detached view of the wick-tube; Fig. 4, a detached verticalA section of the wick-tube and deflector, y y, Fig. 2, indicating the plane of section.

Similar letters of reference indicate corresponding parts in the several figures.

To enable those skilled in the art to fully understand and construct my invention, I will proceed to describe it.

,A represents a lamp, which may be constructed in any of the known ways or forms, and B is a cap which is screwed into the top of the lamp, and has a flat wick-tube C secured vertically and centrally in it. rlhe up- A per end of the wick-tube O has an oval plate D attached to it, and this plate inclines down at each side of the wick-tube, as shown in Fig. l. The form of the plate D is shown clearly by the dotted lines in Fig. 2. The oritice of the wick-tube extends through the plate D.

E is a cone or deector which is fitted on the cap B and extends up just above the top of the wick-tube C. This cone or deflector has a slot a made in its upper end, the form of which is shown in Fig. 2, the sides and ends being concave or curved inward, as plainly shown at. l l l l in Fig. 2. The top of the cone E, around the slot a, inclines downward toward the wick-tube, and the slot a is just a trifle above the top of the wick- By this arrangetube C, as shown in Fig. l.

ment the cone E is made to deflect the air that passes into the cap against the base of the flame only, and a large volume of air is thereby concentrated at that point and a brilliant illuminating-flame obtained. Another advantage is that all of the oil is burned, none being allowed to escape over the top ot the wick-tube C, and no eff'luvia escapes from the lamp and a comparatively small glass chimney is only required, about one-third the length of those now used. The plate D directs the air to the outer part of the upper end of the conc and causes the air to be deflected properly or in a concentrated manner against the flame. In fact, the plate D forms, in connection with the top of the cone E, what may be termed an air-passage in the upper part of the cone to cause the air to act properly on the flame. (See Fig. l.)

The lower part of the wick-tube C is slotted vertically at two points 2 2, (shown in Fig. 3,) and the lower part of the metal 3 between the slots 2 2 is bent in the form of a tube 4 to form abearing for the rod F of the wickwheels 6 6, which work through the slots 2 2 and act against the wick G. B y this arrangement the wheels G G are kent firmly in place and the wick is prevented from becoming entangled with the wheels-a contingency due to the spurs of the lwheels penetrating too far into the wick G, caused by a play of the rod D. The bearing 5 effectually obviates this difficulty.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is-

Forining a bearing 4 for the rod F of the Wick-wheels 6 6 by turning or bending the part 3 of the wick-tube between the slots2 2, as and for the purpose specified.

JOI-IN II. IRWIN. Xl'itnesses:

EDMUND A. PARKER, D. M. IRWIN. 

